By Harrold, Jenni
By Andrew Brodie
By Clarke, Peter
By Fitter, Richard, Fitter, Alastair, Farrer, Ann
By Allaby, Michael
By Whitten, D., Brooks, J., D. Whitten, J. Brooks
By Williams, Ethel W.
By Campbell, Donald
By Dan Green, Simon Basher
By Green, Dan, Basher, Simon
By Millar, Michael
By Lewington Richard
By Rushforth Keith
By Raudenbush, Stephen W., Bryk, Anthony S.
By Blaikie, Norman
By Encyclopedia Britannica
By Rumsey, Deborah J.
By Stroud, K A, Booth, Dexter J
By Parker, Vernon
By Wilmshurst, T.H.
By Calhoun, David
By Room, Adrian
By Brooks, Geo. F., Butel, Janet S., Ornston, L.Nicholas
By Laudan, Larry
By Dewdney, A. K.
By Germann, William J., Stanfield, Cindy L.
By Pursell, Carroll